PolitiFact When someone's vaping nearby, what are you breathing in? The risks of vape pens' secondhand aerosols Secondhand Electronic Cigarette Aerosol and Indoor Air Quality US EPA Secondhand Smoke and Pets Smoke Free At Home NM Secondhand vape exposure dangerous for kids The Star Secondhand exposure from vaping marijuana: Concentrations, emissions, and exposures determined using both research grade and low cost monitors ScienceDirect Have you ever breathed in secondhand vapor from a vape? What exactly are you inhaling? It turns out it's a lengthy list of chemicals. FULL STORY